/*
 * Copyright 2016 Damien Carol <damien.carol@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package hdfs.jsr203;

import java.io.IOException;
import java.nio.file.attribute.GroupPrincipal;
import java.nio.file.attribute.UserPrincipal;
import java.nio.file.attribute.UserPrincipalLookupService;

/**
 * Implementation of {link {@link UserPrincipalLookupService}.
 */
public class HadoopUserPrincipalLookupService
    extends UserPrincipalLookupService {

  private HadoopFileSystem hdfs;

  public HadoopUserPrincipalLookupService(HadoopFileSystem hadoopFileSystem) {
    this.hdfs = hadoopFileSystem;
  }

  @Override
  public UserPrincipal lookupPrincipalByName(String name) throws IOException {
    return new HadoopUserPrincipal(this.hdfs, name);
  }

  @Override
  public GroupPrincipal lookupPrincipalByGroupName(String group)
      throws IOException {
    return new HadoopGroupPrincipal(this.hdfs, group);
  }

}
